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720ffd6aa1
This fix resolves a regression where the corner morph animation in MaterialButtonToggleGroup was abrupt or interrupted in recent versions (1.14.0-alpha07+). The issue was caused by unconditional calls to setShapeAppearanceModel() during layout updates. This triggered a reset in MaterialShapeDrawable (due to stricter checks in recent optimizations), cancelling the ongoing animation. We added a check to compare the calculated corner sizes with the current button's shape. If they are effectively equal, the update is skipped to preserve the ongoing animation. Closes #4990